Home / 99,845,116.80-149,693,025.60-42,290,275.20

Finding the Fourth Proportional to 99,845,116.80, 149,693,025.60 and 42,290,275.20

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Solution

The fourth proportional to 99,845,116.80, 149,693,025.60 and 42,290,275.20 is: 63,403,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,845,116.80 : 149,693,025.60 = 42,290,275.20 : x
  2. Step 2: Convert to fraction form
    99,845,116.80/149,693,025.60 = 42,290,275.20/x
  3. Step 3: Cross multiply
    99,845,116.80x = 149,693,025.60 × 42,290,275.20
  4. Step 4: Simplify right side
    99,845,116.80x = 6,330,559,248,144,645
  5. Step 5: Solve for x
    x = 6,330,559,248,144,645/99,845,116.80
  6. Step 6: Final answer
    x = 63,403,794.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.